Finding the Fourth Proportional to 2,974.86, 4,105.23 and 1,715.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,974.86 : 4,105.23 = 1,715.91 : x
2. Step 2: Convert to fraction form
   2,974.86/4,105.23 = 1,715.91/x
3. Step 3: Cross multiply
   2,974.86x = 4,105.23 × 1,715.91
4. Step 4: Simplify right side
   2,974.86x = 7,044,215.47
5. Step 5: Solve for x
   x = 7,044,215.47/2,974.86
6. Step 6: Final answer
   x = 2,367.92